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Error Adding RichTextBox

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RichTextBox
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Mark
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Mark asked on 25 Nov 2011, 06:24 AM
Hello:
I am trying to use the RichTextBox to a Silverlight User Control and I am getting an error when I drag it from the toolbox. (I have added all the required references to my project.)

The error is:  Value cannot be null.
                        Parameter name: childOrDescendant

I have added a screenshot of the error.

Thanks,
Mark


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Boby
Telerik team
answered on 29 Nov 2011, 09:33 AM
Hi Mark,
It is possible that the wizard fails to create an instance of RadRichTextBox if you have an older version of the controls installed on your machine. In that case, you should uninstall the previous version of the controls.
You could also try remove all the references to Telerik assemblies, manually delete solution's Bin folder, re-add the required assemblies listed here and build your project before proceeding to add RadRichTextBox to the UserControl. You can find a project with per-generated XAML in the support ticket you opened.

Don't hesitate to contact us if you have other questions.

Best wishes,
Boby
the Telerik team

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